From 6ff3b19ee6120edf015fad8caab2991faa3070af Mon Sep 17 00:00:00 2001 From: Anthony Barbier Date: Mon, 4 Sep 2017 18:44:23 +0100 Subject: COMPMID-344 Updated doxygen Change-Id: I32f7b84daa560e460b77216add529c8fa8b327ae --- src/core/NEON/kernels/NESobel5x5Kernel.cpp | 402 +++++++++++++++++++++++++++++ 1 file changed, 402 insertions(+) create mode 100644 src/core/NEON/kernels/NESobel5x5Kernel.cpp (limited to 'src/core/NEON/kernels/NESobel5x5Kernel.cpp') diff --git a/src/core/NEON/kernels/NESobel5x5Kernel.cpp b/src/core/NEON/kernels/NESobel5x5Kernel.cpp new file mode 100644 index 0000000000..488eee1176 --- /dev/null +++ b/src/core/NEON/kernels/NESobel5x5Kernel.cpp @@ -0,0 +1,402 @@ +/* + * Copyright (c) 2016, 2017 ARM Limited. + * + * SPDX-License-Identifier: MIT + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to + * deal in the Software without restriction, including without limitation the + * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or + * sell copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "arm_compute/core/NEON/kernels/NESobel5x5Kernel.h" + +#include "arm_compute/core/Coordinates.h" +#include "arm_compute/core/Error.h" +#include "arm_compute/core/Helpers.h" +#include "arm_compute/core/ITensor.h" +#include "arm_compute/core/Types.h" +#include "arm_compute/core/Validate.h" +#include "arm_compute/core/Window.h" + +#include +#include +#include + +using namespace arm_compute; + +NESobel5x5HorKernel::NESobel5x5HorKernel() + : _input(nullptr), _output_x(nullptr), _output_y(nullptr), _run_sobel_x(false), _run_sobel_y(false), _border_size(0) +{ +} + +BorderSize NESobel5x5HorKernel::border_size() const +{ + return _border_size; +} + +void NESobel5x5HorKernel::configure(const ITensor *input, ITensor *output_x, ITensor *output_y, bool border_undefined) +{ + ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(input, 1, DataType::U8); + ARM_COMPUTE_ERROR_ON((output_x == nullptr) && (output_y == nullptr)); + + _run_sobel_x = output_x != nullptr; + _run_sobel_y = output_y != nullptr; + + if(_run_sobel_x) + { + ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_x, 1, DataType::S16); + } + + if(_run_sobel_y) + { + ARM_COMPUTE_ERROR_ON_DATA_TYPE_CHANNEL_NOT_IN(output_y, 1, DataType::S16); + } + + _input = input; + _output_x = output_x; + _output_y = output_y; + _border_size = BorderSize(border_undefined ? 0 : 2, 2); + + // Configure kernel window + constexpr unsigned int num_elems_processed_per_iteration = 8; + constexpr unsigned int num_elems_read_per_iteration = 16; + constexpr unsigned int num_elems_written_per_iteration = 8; + + Window win = calculate_max_window_horizontal(*input->info(), Steps(num_elems_processed_per_iteration), border_undefined, border_size()); + AccessWindowHorizontal output_x_access(output_x == nullptr ? nullptr : output_x->info(), 0, num_elems_written_per_iteration); + AccessWindowHorizontal output_y_access(output_y == nullptr ? nullptr : output_y->info(), 0, num_elems_written_per_iteration); + + update_window_and_padding(win, + AccessWindowHorizontal(input->info(), -border_size().left, num_elems_read_per_iteration), + output_x_access, + output_y_access); + + output_x_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); + output_y_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); + + INEKernel::configure(win); +} + +void NESobel5x5HorKernel::run(const Window &window) +{ + ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); + ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window); + + Window win_in(window); + win_in.shift(Window::DimX, -2); + + Iterator input(_input, win_in); + Iterator output_x; + Iterator output_y; + + if(_run_sobel_x) + { + output_x = Iterator(_output_x, window); + } + + if(_run_sobel_y) + { + output_y = Iterator(_output_y, window); + } + + if(_run_sobel_y && _run_sobel_x) + { + static const int16x8_t six = vdupq_n_s16(6); + static const int16x8_t four = vdupq_n_s16(4); + static const int16x8_t two = vdupq_n_s16(2); + static const int16x8_t minustwo = vdupq_n_s16(-2); + + execute_window_loop(window, [&](const Coordinates & id) + { + const uint8x16_t data = vld1q_u8(input.ptr()); + + const int16x8x2_t data_s16 = + { + { + vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(data))), + vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(data))) + } + }; + + int16x8_t out_y = data_s16.val[0]; + out_y = vmlaq_s16(out_y, vextq_s16(data_s16.val[0], data_s16.val[1], 1), four); + out_y = vmlaq_s16(out_y, vextq_s16(data_s16.val[0], data_s16.val[1], 2), six); + out_y = vmlaq_s16(out_y, vextq_s16(data_s16.val[0], data_s16.val[1], 3), four); + out_y = vaddq_s16(out_y, vextq_s16(data_s16.val[0], data_s16.val[1], 4)); + + vst1q_s16(reinterpret_cast(output_y.ptr()), out_y); + + int16x8_t out_x = vnegq_s16(data_s16.val[0]); + out_x = vmlaq_s16(out_x, vextq_s16(data_s16.val[0], data_s16.val[1], 1), minustwo); + out_x = vmlaq_s16(out_x, vextq_s16(data_s16.val[0], data_s16.val[1], 3), two); + out_x = vaddq_s16(out_x, vextq_s16(data_s16.val[0], data_s16.val[1], 4)); + + vst1q_s16(reinterpret_cast(output_x.ptr()), out_x); + }, + input, output_x, output_y); + } + else if(_run_sobel_x) + { + static const int16x8_t two = vdupq_n_s16(2); + static const int16x8_t minustwo = vdupq_n_s16(-2); + + execute_window_loop(window, [&](const Coordinates & id) + { + const uint8x16_t data = vld1q_u8(input.ptr()); + + const int16x8x2_t data_s16 = + { + { + vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(data))), + vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(data))) + } + }; + + int16x8_t out = vnegq_s16(data_s16.val[0]); + out = vmlaq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 1), minustwo); + out = vmlaq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 3), two); + out = vaddq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 4)); + + vst1q_s16(reinterpret_cast(output_x.ptr()), out); + }, + input, output_x); + } + else if(_run_sobel_y) + { + static const int16x8_t six = vdupq_n_s16(6); + static const int16x8_t four = vdupq_n_s16(4); + + execute_window_loop(window, [&](const Coordinates & id) + { + const uint8x16_t data = vld1q_u8(input.ptr()); + + const int16x8x2_t data_s16 = + { + { + vreinterpretq_s16_u16(vmovl_u8(vget_low_u8(data))), + vreinterpretq_s16_u16(vmovl_u8(vget_high_u8(data))) + } + }; + + int16x8_t out = data_s16.val[0]; + out = vmlaq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 1), four); + out = vmlaq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 2), six); + out = vmlaq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 3), four); + out = vaddq_s16(out, vextq_s16(data_s16.val[0], data_s16.val[1], 4)); + + vst1q_s16(reinterpret_cast(output_y.ptr()), out); + }, + input, output_y); + } +} + +NESobel5x5VertKernel::NESobel5x5VertKernel() + : _input_x(nullptr), _input_y(nullptr), _output_x(nullptr), _output_y(nullptr), _run_sobel_x(false), _run_sobel_y(false) +{ +} + +BorderSize NESobel5x5VertKernel::border_size() const +{ + return BorderSize(2, 0); +} + +void NESobel5x5VertKernel::configure(ITensor *input_x, ITensor *input_y, ITensor *output_x, ITensor *output_y, bool border_undefined) +{ + ARM_COMPUTE_ERROR_ON((output_x == nullptr) && (output_y == nullptr)); + + _run_sobel_x = output_x != nullptr; + _run_sobel_y = output_y != nullptr; + + if(_run_sobel_x) + { + ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(input_x, Format::S16); + ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(output_x, Format::S16); + } + + if(_run_sobel_y) + { + ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(input_y, Format::S16); + ARM_COMPUTE_ERROR_ON_FORMAT_NOT_IN(output_y, Format::S16); + } + + _input_x = input_x; + _input_y = input_y; + _output_x = output_x; + _output_y = output_y; + + const ITensor *const input = _run_sobel_x ? input_x : input_y; + + // Configure kernel window + constexpr unsigned int num_elems_processed_per_iteration = 16; + constexpr unsigned int num_elems_read_per_iteration = 16; + constexpr unsigned int num_elems_written_per_iteration = 16; + constexpr unsigned int num_rows_read_per_iteration = 5; + + Window win = calculate_max_window(*input->info(), Steps(num_elems_processed_per_iteration), border_undefined, border_size()); + AccessWindowHorizontal output_x_access(output_x == nullptr ? nullptr : output_x->info(), 0, num_elems_written_per_iteration); + AccessWindowHorizontal output_y_access(output_y == nullptr ? nullptr : output_y->info(), 0, num_elems_written_per_iteration); + + update_window_and_padding(win, + AccessWindowRectangle(input_x == nullptr ? nullptr : input_x->info(), 0, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration), + AccessWindowRectangle(input_y == nullptr ? nullptr : input_y->info(), 0, -border_size().top, num_elems_read_per_iteration, num_rows_read_per_iteration), + output_x_access, + output_y_access); + + output_x_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); + output_y_access.set_valid_region(win, input->info()->valid_region(), border_undefined, border_size()); + + INEKernel::configure(win); +} + +void NESobel5x5VertKernel::run(const Window &window) +{ + ARM_COMPUTE_ERROR_ON_UNCONFIGURED_KERNEL(this); + ARM_COMPUTE_ERROR_ON_INVALID_SUBWINDOW(INEKernel::window(), window); + + Iterator input_x; + Iterator input_y; + Iterator output_x; + Iterator output_y; + + const int16_t *input_x_low2_ptr = nullptr; + const int16_t *input_x_low_ptr = nullptr; + const int16_t *input_x_mid_ptr = nullptr; + const int16_t *input_x_top_ptr = nullptr; + const int16_t *input_x_top2_ptr = nullptr; + + const int16_t *input_y_low2_ptr = nullptr; + const int16_t *input_y_low_ptr = nullptr; + const int16_t *input_y_top_ptr = nullptr; + const int16_t *input_y_top2_ptr = nullptr; + + if(_run_sobel_x) + { + input_x = Iterator(_input_x, window); + output_x = Iterator(_output_x, window); + input_x_top2_ptr = reinterpret_cast(_input_x->ptr_to_element(Coordinates(0, -2))); + input_x_top_ptr = reinterpret_cast(_input_x->ptr_to_element(Coordinates(0, -1))); + input_x_mid_ptr = reinterpret_cast(_input_x->ptr_to_element(Coordinates(0, 0))); + input_x_low_ptr = reinterpret_cast(_input_x->ptr_to_element(Coordinates(0, 1))); + input_x_low2_ptr = reinterpret_cast(_input_x->ptr_to_element(Coordinates(0, 2))); + } + + if(_run_sobel_y) + { + input_y = Iterator(_input_y, window); + output_y = Iterator(_output_y, window); + input_y_top2_ptr = reinterpret_cast(_input_y->ptr_to_element(Coordinates(0, -2))); + input_y_top_ptr = reinterpret_cast(_input_y->ptr_to_element(Coordinates(0, -1))); + input_y_low_ptr = reinterpret_cast(_input_y->ptr_to_element(Coordinates(0, 1))); + input_y_low2_ptr = reinterpret_cast(_input_y->ptr_to_element(Coordinates(0, 2))); + } + + static const int16x8_t six = vdupq_n_s16(6); + static const int16x8_t four = vdupq_n_s16(4); + static const int16x8_t two = vdupq_n_s16(2); + static const int16x8_t minustwo = vdupq_n_s16(-2); + + if(_run_sobel_x) + { + execute_window_loop(window, [&](const Coordinates & id) + { + // Convert offset from uint8_t* to uint16_t* + const size_t input_offset_high_s16 = input_x.offset() / 2; + const size_t input_offset_low_s16 = input_offset_high_s16 + 8; + + //HIGH DATA + //top2 + int16x8_t data_high = vld1q_s16(input_x_top2_ptr + input_offset_high_s16); + int16x8_t out_high = data_high; + //top + data_high = vld1q_s16(input_x_top_ptr + input_offset_high_s16); + out_high = vmlaq_s16(out_high, data_high, four); + //mid + data_high = vld1q_s16(input_x_mid_ptr + input_offset_high_s16); + out_high = vmlaq_s16(out_high, data_high, six); + //low + data_high = vld1q_s16(input_x_low_ptr + input_offset_high_s16); + out_high = vmlaq_s16(out_high, data_high, four); + //low2 + data_high = vld1q_s16(input_x_low2_ptr + input_offset_high_s16); + out_high = vaddq_s16(out_high, data_high); + + vst1q_s16((reinterpret_cast(output_x.ptr())), out_high); + + //LOW DATA + //top2 + int16x8_t data_low = vld1q_s16(input_x_top2_ptr + input_offset_low_s16); + int16x8_t out_low = data_low; + //top + data_low = vld1q_s16(input_x_top_ptr + input_offset_low_s16); + out_low = vmlaq_s16(out_low, data_low, four); + //mid + data_low = vld1q_s16(input_x_mid_ptr + input_offset_low_s16); + out_low = vmlaq_s16(out_low, data_low, six); + //low + data_low = vld1q_s16(input_x_low_ptr + input_offset_low_s16); + out_low = vmlaq_s16(out_low, data_low, four); + //low2 + data_low = vld1q_s16(input_x_low2_ptr + input_offset_low_s16); + out_low = vaddq_s16(out_low, data_low); + + vst1q_s16((reinterpret_cast(output_x.ptr())) + 8, out_low); + }, + input_x, output_x); + } + + if(_run_sobel_y) + { + execute_window_loop(window, [&](const Coordinates & id) + { + // Convert offset from uint8_t* to uint16_t* + const size_t input_offset_high_s16 = input_y.offset() / 2; + const size_t input_offset_low_s16 = input_offset_high_s16 + 8; + + //HIGH DATA + //top2 + int16x8_t data_high = vld1q_s16(input_y_top2_ptr + input_offset_high_s16); + int16x8_t out_high = vnegq_s16(data_high); + //top + data_high = vld1q_s16(input_y_top_ptr + input_offset_high_s16); + out_high = vmlaq_s16(out_high, data_high, minustwo); + //low + data_high = vld1q_s16(input_y_low_ptr + input_offset_high_s16); + out_high = vmlaq_s16(out_high, data_high, two); + //low2 + data_high = vld1q_s16(input_y_low2_ptr + input_offset_high_s16); + out_high = vaddq_s16(out_high, data_high); + + vst1q_s16((reinterpret_cast(output_y.ptr())), out_high); + + //LOW DATA + //top2 + int16x8_t data_low = vld1q_s16(input_y_top2_ptr + input_offset_low_s16); + int16x8_t out_low = vnegq_s16(data_low); + //top + data_low = vld1q_s16(input_y_top_ptr + input_offset_low_s16); + out_low = vmlaq_s16(out_low, data_low, minustwo); + //low + data_low = vld1q_s16(input_y_low_ptr + input_offset_low_s16); + out_low = vmlaq_s16(out_low, data_low, two); + //low2 + data_low = vld1q_s16(input_y_low2_ptr + input_offset_low_s16); + out_low = vaddq_s16(out_low, data_low); + + vst1q_s16((reinterpret_cast(output_y.ptr())) + 8, out_low); + }, + input_y, output_y); + } +} -- cgit v1.2.1